Audio Note DAC4.1x Balanced - Manual (Page 10)

CONNECTION continued…
XLR MALE
OUTPUT
1
2
3
RCA
OUTPUT
SOCKET
BALANCED /
SINGLE ENDED
SWITCH
Balanced The DAC4.1x Balanced is equipped with custom designed and
manufactured output transformers, which utilize an improved output
and grounding scheme to provide the best possible connection to the
pre amplifier.
Below is a description of the various cable and connection options: -
The pin configuration for all Audio Note (UK)
XLR / BALANCED connections is as follows: -
PIN 1 Ground / Shield
PIN 2 Positive / Send
PIN 3 Negative / Return
The balanced and single ended outputs cannot be used
simultaneously; select the appropriate output using the toggle switch.
When using a pre amplifier with a true balanced input, the
‘BALANCED / SINGLE ENDED’ switch may be set in either position.
When set to the ‘BALANCED’ position, the centre tap of the output
transformer secondary is connected to the DAC4.1x Balanced’s
ground. When set in the ‘SINGLE ENDED’ (unbalanced) position, the
secondary ‘floats’ in relation to the DAC4.1x Balanced’s ground. This
provides the option of either a low or high common mode impedance
to ground at the DAC4.1x Balanced’s output. Experiment with both
positions to achieve the lowest background hum from the system.